问题描述
我正在尝试实现一个 QComboBox，它包含 QIcon 和 QString，如下所示:
I am trying to implement a QComboBox, which holds QIcon and QString, like this:
QComboBox.addItem(icon, label);
我希望图标在下拉列表中可见，但在工具栏中不可见.选择项目后，只有字符串应该可见.
I want the icons to be visible in the drop-down list, but not in the toolbar. Only the string should be visible after item selection.
有没有简单的方法可以做到这一点?
Is there an easy way to do this?
推荐答案
最好的方法是设置一个委托并自己绘制项目.然后您可以选择何时或不绘制图标(decorationRole)，您可以选择不为当前索引的索引绘制图标.我可以找到一个关于如何在组合框上使用委托的快速示例:http://programmingexamples.net/wiki/Qt/Delegates/ComboBoxDelegate
The best way is to set a delegate and to draw the items yourself.Then you can choose when or not to draw the icon ( decorationRole ), you can choose not to draw the icon for the index which is the current index.I could find a quick example on how to use a delegate on combobox:http://programmingexamples.net/wiki/Qt/Delegates/ComboBoxDelegate
但恐怕这不是最简单的方法.祝你好运！
But I am afraid it is not the most easist of the ways.Good luck!
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